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3SOM

crystal structure of human MMACHC

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D, E...
(A, B, C, D, E...)
Methylmalonic aciduria and homocystinuria type C proteinpolymer28632432.616UniProt (Q9Y4U1)
Pfam (PF16690)
Homo sapiens (human)
2AC, CA, CB, FA, FB...
(P, D, J, E, K...)
COBALAMINnon-polymer1330.416Chemie (B12)
3BC, DA, DB, GA, GB...
(P, D, J, E, K...)
CITRATE ANIONnon-polymer189.116Chemie (FLC)
4CC, EA, EB, HB, MA...
(P, D, J, K, F...)
2-AMINO-ETHANETHIOLnon-polymer77.114Chemie (DHL)
5AA, AB, BA, BB, HA...
(C, I, D, J, E...)
5'-DEOXYADENOSINEnon-polymer251.218Chemie (5AD)
6DC, EC, IA
(P, E)
1,2-ETHANEDIOLnon-polymer62.13Chemie (EDO)
7FC, GC, HC, IC, JC...
(A, B, C, D, E...)
waterwater18.01646Chemie (HOH)
Sequence modifications
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P: 1 - 282 (UniProt: Q9Y4U1)
PDBExternal DatabaseDetails
Tyr -3-expression tag
Phe -2-expression tag
Gln -1-expression tag
Ser 0-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains16
Total formula weight518921.6
Non-Polymers*Number of molecules67
Total formula weight30099.9
All*Total formula weight549021.5
*Water molecules are not included.

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PDB entries from 2026-01-14

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